Boiler-cleaner.



P. X. BAYER. BOILER CLEANER. APPLICATION FILED NOV. so, 1908.

Patented Apr. 27, 1909.

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'- had to the accompanying drawings, formin a part hereof. 4

UNITED STATES PATENT OFFICE.

' g FRANK X. BAYER, or s'r. LoUI-s, MISSOURI.

/ I BOILER-CLEANER.

Specification of Letters Patent.

Patented April 27, 1909.-

Application filed November 30, 1908. Serial No. 465,381.

Toall whom it may concern: Be it lmownthat I, FRANK X. BAYER, a

' citizen, of the United States, residing at St.

Louis, State of Missouri, have invented certain new and useful Improvements in Boiler- (lleaners, of which the following is a full, clear, and exact description, reference being and Fig'. 4 is an enlarged sectional detail showing the manner of inserting the nozzles .through the hollow stay-bolts of the waterlegs.

' The present invention is an'exten sion of the construction of boiler-cleaner covered by my U. S. Patent 900,078, dated October 6, 1908-, and has for its object to effect a positive dislodglnent of the dirt immediately removed by the steam Ljets, but which s1ibsequentlysettlcs at the base of the "exit flue articular types'of boiler;

..A fort or object is to prevent access of cold air into the combustion chamber of the boiler and into the space immediately below :the'boiler shell.

A further object to utilize the present hollow stay-bolts of thewaterlegs for directly supporting the nozzles from avhich the steam jets issue in the cleaning operation. i

The present improvement possesses fu'r t'her and other advantages better apparent :from adetailed description of' the invention -.Wl1ich'is as follows '1 Referring 'to the d-raWings,.S, represents a boiler shell having terminal water-legs L, L connected by circulating wvatcr-tubes T.-

. Extending over theme-box B, and above the bridge-wall TV, and a suitable distance over the. rear combustion chamber G, is a deflecting wall a, the products of combustion assin rearwardl below-said walla thence upwardly between the tubes T, and forwardly, Where they .passabove the upper deflecting wall 1) between Sziid wall and shell water- S, into the stack D. These features of course, form no part of my invention.

Tapping the shell S at a convenient point above the water line is a steam pipe 1 having front and rear dependin terminals 2 and 3 respectively, controlled by valves V at convenient points. From the terminal 2 lead horizontal branches 2 and 2 respectively the free ends of said branches being closed. The terminal 3 is likewise provided with horizontal branches 3 and 3 disposed at different elevations, .the free' ends of said branches being likewise closed. Pro'ecting in proper direction toward their a jacent egsyfrom the branches 2, 2 and 3" are distributing tubes t each terminating in a screw socket s to which'in turn is screwed a steam nozzle or reduced extension 1;. In the present invention the hollow stay-bolts 72 by which the sheetsof the water-legs are connected and reinforced are availed of to receive the spray nozzles a, the -sockets sj serving as lugs to close thestay-bolt openings and t ereby'prevent the influx of undesirable uantities of cold air into the space under the oiler shell or into the combustion chamber, a result to be studiously avoided as it reduces thevca acity of the boiler.

The branch 3 as its distributing tubes 25 disposed in pairs the members of which eX- tend respectively above and below said branch, each member of a pair terminating in a nozzle, and the several pairs having an intermediate nozzle disposed between the pipe 3 and the end of one of the members of the. pair, such intermediate nozzles being dis osed on opposite sides of the branch 3" v wit each consecutive pair (Fi 3). ,wayaneven distributlon-of the, steam jets or sprays is'efl'ecte'd, and the cleaning is ac the. branch 3 have however each four nozzles instead of three.

The planes of disposition of the several" branches 2,, 2", 3', 3 are such that he noz zles. of the branch 2' discharge into'the sfpace rent at the front of the boiler behind the;

water-leg and immediately beneath .the shell S; the'nozzles from the branch 2" dis; charge behind the front water-leg immef diatel above the wall a; the nozzles of the; brane 3 discharge behind therear Water? "leg immediately over the rear end of the wall '1); and the nozzles'ofi the branch 3disi charge behind the rear -water-leg -into'the In this complished in. a ininimuni amount of time. The terminal pairs of distribut ng tubes 0n is in 1isllow mung l'egis JIIl i sewn cl he Wa amber, w

eyearwatar-leg 25 and below Ween the Wale max/ugh operating; subsl sheets ft' mmmuni the respective w usliugl (Ill from tlm rclly m er lnlser, a ing l' ill n. lmiler rear Walter leg, 11;; the inter-tubes Ill) onclil r clm ex ICU sum wall Wzllc isl'uillliflS lhzcuw.

en lllv \n' dislmlgcal, by the 1 inch I gull by l zles leading tlon t onward to the sies bell-we tue o zlcs WllGl t0 meclmmmlly of (lnt "-.-:l11 :l1 1

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